Subaru LEGACY 2003 Service Manual page 150

DIAGNOSTICS CHART WITH SELECT MONITOR
VDC (DIAGNOSTICS)
9 CHECK CONTAMINATION OF ABS SENSOR
OR TONE WHEEL.
Remove disc rotor from hub.
Is the ABS sensor pole piece or the tone wheel
contaminated by dirt or other foreign matter?
10 CHECK DAMAGE OF ABS SENSOR OR
TONE WHEEL.
Are there broken or damaged teeth in the ABS
sensor pole piece or the tone wheel?
11 CHECK TONE WHEEL RUNOUT.
Measure tone wheel runout.
Is the measured value less than the specified
value?
12 CHECK VDCCM.
1) Turn ignition switch to OFF.
2) Connect all connectors.
3) Erase the memory.
4) Perform inspection mode.
5) Read out the diagnostic trouble code.
Is the same diagnostic trouble code as in
the current diagnosis still being output?
13 CHECK ANY OTHER DIAGNOSTIC TROU-
BLE CODES APPEARANCE.
Are other diagnostic trouble codes being out-
put?
Step Value
Dirt or foreign matter found.
Broken or damaged.
0.05 mm (0.0020 in)
Same pattern.
Other DTC indicated.
VDC-148
Yes
Thoroughly Go to step 10.
remove dirt or
other foreign mat-
ter.
Replace ABS sen- Go to step 11.
sor or tone wheel.
Front <Ref. to
VDC-27, Front
ABS Sensor.> and
<Ref. to VDC-29,
Front Tone
Wheel.> Rear
<Ref. to VDC-28,
Rear ABS Sen-
sor.> and <Ref. to
VDC-30, Rear
Tone Wheel.>
Go to step 12. Repair tone wheel.
Front <Ref. to
VDC-29, Front
Tone Wheel.>
Rear <Ref. to
VDC-30, Rear
Tone Wheel.>
Replace VDCCM. Go to step 13.
<Ref. to VDC-8,
VDC Control Mod-
ule (VDCCM).>
Proceed with the A temporary poor
diagnosis corre- contact.
sponding to the
diagnostic trouble
code.
No